#更新系统中安装的任何包：python -m pip install --upgrade package_name
#安装的第三方包：python -m pip install --user package_name 执行时遇到bug可去掉user


def get_formatted_name(first,last,middle=''):
    if middle:
        full_name = f"{first} {middle} {last}"
    else:
        full_name = f"{first} {last}"
    return full_name.title() 